Can anyone comment on how rkt compares to Docker regarding the issues from this article ? And how does rkt compare to Docker in production in your experience ?

I've been using Docker in production for a single server website and have had very few issues. I do like how easy it is to reproduce a working environnement with a "docker build" though.

That being said, I think that just using Ansible on a server is probably an easier and more reliable solution. Ansible is battle tested and allows to have reproducible environments too.